<div class="apiDetail">
    <div>
        <h2><span class="path">setting.callback.</span>onAsyncError</h2>

        <h2><span>Function(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown)</span>&nbsp;</h2>

        <h3>Overview<span class="h3_info">[ depends on <span
                class="highlight_green">jquery.ztree.core</span> js ]</span></h3>

        <div class="desc">
            <p></p>

            <div class="longdesc">
                <p>Used to capture the error event when execute ajax.</p>

                <p class="highlight_red">If you set 'setting.callback.beforeAsync',and return false, zTree will not
                    execute ajax, and will not trigger the 'onAsyncSuccess / onAsyncError' callback.</p>

                <p>Default: null</p>
            </div>
        </div>
        <h3>Function Parameter Descriptions</h3>

        <div class="desc">
            <h4><b>event</b><span>js event Object</span></h4>

            <p>event Object</p>
            <h4 class="topLine"><b>treeId</b><span>String</span></h4>

            <p>zTree unique identifier: <b class="highlight_red">treeId</b>.</p>
            <h4 class="topLine"><b>treeNode</b><span>JSON</span></h4>

            <p>JSON data object of the parent node</p>

            <p class="highlight_red">When load root nodes, treeNode = null</p>
            <h4 class="topLine"><b>XMLHttpRequest</b><span>String</span></h4>

            <p>XMLHttpRequest Object, please refer to JQuery API documentation.</p>
            <h4 class="topLine"><b>textStatus</b><span>String</span></h4>

            <p>a string categorizing the status of the request("success", "error"...), please refer to JQuery API
                documentation.</p>
            <h4 class="topLine"><b>errorThrown</b><span>String</span></h4>

            <p>eWhen an HTTP error occurs, errorThrown receives the textual portion of the HTTP status, please refer to
                JQuery API documentation.</p>
        </div>
        <h3>Examples of setting & function</h3>
        <h4>1. When execute ajax make error, alert message.</h4>
	<pre xmlns=""><code>function myOnAsyncError(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown) {
        alert(XMLHttpRequest);
        };
        var setting = {
        callback: {
        onAsyncError: myOnAsyncError
        }
        };
        ......</code></pre>
    </div>
</div>